Leases - Leases included in the Condensed Consolidated Statement of Financial Condition (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Operating Leases
Operating lease right-of-use assets	$ 331,269	$ 360,092
Operating lease liabilities	$ 379,212	$ 415,539
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Right-of-use assets	Right-of-use assets
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities
Finance Leases
Property and equipment, gross	$ 20,732	$ 18,116
Amortization of right-of-use assets	(8,946)	(6,310)
Property and equipment, net	11,786	11,806
Finance lease liabilities	$ 11,846	$ 11,940
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Right-of-use assets	Right-of-use assets
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Lease liabilities	Lease liabilities